7-40
Sending data to external devices
Communication with external devices is handled through the data registers.
Data to be output is stored in the data register used as the send buffer (DT), and when the F159 (MTRN)
instruction is executed, the data is output from the COM port.
Data table for transmission (send buffer)
Sample program for sending data
The following program transmits the characters “ABCDEFGH (Hex)” to an external device using COM1
port.
The program described above is executed in the following sequence.
1) “ABCDEFGH” is converted to an ASCII code and stored in a data register.
2) The data is sent from COM1 port using the F159 (MTRN) instruction.
Explanatory diagram
Summary of Contents for FP E Series
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Page 17: ...Chapter 1 Functions and Restrictions of the Unit ...
Page 28: ...1 12 ...
Page 29: ...Chapter 2 Specifications and Functions of the Unit ...
Page 37: ...2 9 Circuit diagram C32 Y0 Y1 Y3 Y4 C28 Y0 Y1 Y3 Y4 Y2 Y5 to YF Y2 Y5 to YB ...
Page 48: ...2 20 ...
Page 49: ...Chapter 3 Expansion ...
Page 56: ...3 8 Terminal layout diagram Note The numbers in the connector are for the first expansion ...
Page 61: ...Chapter 4 I O Allocation ...
Page 66: ...4 6 ...
Page 67: ...Chapter 5 Installation and Wiring ...
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Page 91: ...Chapter 6 High speed counter Pulse Output and PWM Output functions ...
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Page 125: ...6 35 Pulse output diagram ...
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Page 147: ...6 57 Program ...
Page 151: ...Chapter 7 Communication Cassette ...
Page 210: ...7 60 The values of DT50 and DT51 are written in DT0 and 1 of PLC ...
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Page 239: ...Chapter 8 Self Diagnostic and Troubleshooting ...
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Page 249: ...Chapter 9 Precautions During Programming ...
Page 260: ...9 12 Example 2 Using the CT instruction between JP and LBL instructions ...
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Page 269: ...Chapter10 Specifications ...
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Page 287: ...Chapter 11 Dimensions ...
Page 290: ...11 4 11 1 3 Expansion Unit FPG XY64D2T FPG XY64D2P FPG EM1 ...
Page 293: ...Chapter 12 Appendix ...
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